Improvement in pumps



UNITED STATES PATENT OEEICE.

BENJAMIN J. C. HOWE, OF SYRAGUSE, NEW YORK.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 44,627. dated OCtObeI11, 1564- To all whom it may concern:

Be it known that I, BENJAMIN J. C. H owE ot Syracuse, in the county ofOnondaga, in State of New York, have invented a new and usefulImprovementin Double-Acting Pumps and I do declare that the followingisa full and exact description thereof, reference being had to theaccompanying drawing, and to the letters of reference marked thereon.

The object of this invention is to produce a cheaper and more durablearticle of use and trade, and also to furnish a ready and efficientengine for extinguishing a ire 5 and it consists, first, in a novelconstruction of a valve within a hollow piston, combined with a hollowpiston-rod; and, secondly, in arranging with a hollow piston andpiston-rod, substantially as described, an induction-valve that may heopened at option by the descent ofthe piston for the purpose ofpermitting the escape downward oi' the water in the cylinder when thepiston is at rest.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

I construct the pump-barrel in any of the known forms that may beconvenient. The

piston and piston-rod are hollow, thus answer, ing the double purpose ofconducting-pipe and piston-rod.

In the accompanying drawing, a a is the hollow piston-rod. b b is thepiston. c is a valve for closing` the eduction-ports in the hollowpiston. induction-ports.

The valve c consists of a cup having openings in its sides and a iiangeexteriorI to the upper edge. This ange closes two or more holes in thetop of the piston between the piston-rod and the perimeter of thepiston, and a center hole in the bottom of the piston is closed by thebottom of the cup, the water iiowing through the openings in the sidesot' the cup from the lower portl and passing directly over Jthe cup andinto the hollow pistonrod from the upper ports. 1t will be noticed thatby the descent ot' the piston the valve o is brought in contact with theheel ot' the valve d, thereby opening both valves and allowing the waterto escape from the pump.

',Io permit the water contained in the pipe and cylinder to escape toprevent freezing, the piston should be pressed down upon the heel of thevalve d.

What I claim isd e are valves for closing the l. The construction andoperation of the valve c within a hollowl piston, as shown anddescribed.

2. The extension of the valve ci, in combination with the piston b b andvalve c, substantially as shown and described.

BENJAMIN J. C. HOVE.

Witnesses:

GEO. C. LAMBEIGHT, C. A. C. SMITH.

